1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pishuonlain [190]
3 years ago
13

What has alternating electronic and magnetic fields that travel in the form of a wave

Chemistry
1 answer:
STALIN [3.7K]3 years ago
8 0

The magnate is the answer

You might be interested in
`Suppose you have a sample of NaOH (0.0315 L, to be exact). If this amount of NaOH is used to exactly titrate 0.0250 L of HCl th
yuradex [85]

Answer:

0.0835 M

Explanation:

Step 1: Write the balanced equation

NaOH + HCl ⇒ NaCl + H₂O

Step 2: Calculate the reacting moles of HCl

0.0250 L of 0.105 M HCl react.

0.0250 L × 0.105 mol/L = 2.63 × 10⁻³ mol

Step 3: Calculate the reacting moles of NaOH

The molar ratio of NaOH to HCl is 1:1. The reacting moles of NaOH are 1/1 × 2.63 × 10⁻³ mol = 2.63 × 10⁻³ mol.

Step 4: Calculate the molarity of NaOH

2.63 × 10⁻³ moles of NaOH are in 0.0315 L of solution.

M = 2.63 × 10⁻³ mol / 0.0315 L = 0.0835 M

7 0
3 years ago
Which phrases describe sedimentary rock?
daser333 [38]
Smooth, rough, hard or soft are common descriptions
3 0
3 years ago
In titrating 0.20 M hydrochloric acid, HCl, with 0.20 M NaOH at 25°C, the solution at the equivalence point is
xxTIMURxx [149]

Answer:

c) 0.10M NaCl

Explanation:

<em>Options are:</em>

<em>a) 0.20M NaCl</em>

<em>b) Very acidic</em>

<em>c) 0.10M NaCl</em>

<em>d) 0.10M HCl + 0.20M NaOH</em>

<em>e) Slightly acidic.</em>

<em />

Based on the reaction:

NaOH + HCl → H₂O + NaCl

You can see than 1 mole of NaOH reacts per mole of HCl producing 1 mole of NaCl

Assuming 1L of 0.20M HCl reacts with 1L of NaOH, moles of both compounds are:

1L * 0.20mol/L = 0.20 moles reacts. That means moles of NaCl produced are 0.20moles in 2L. Molarity of NaCl is:

0.20mol / 2L = 0.10M NaCl

That means, right option is:

<h3>c) 0.10M NaCl</h3>

8 0
3 years ago
Consider 2.4 moles of a gas contained in a 4.0 L bulb at a constant temperature of 32°C. This bulb is connected to an evacuated
Luden [163]

Complete Question

The complete question is shown on the first uploaded image

Answer

a

As the valve is opened , the gas will flow into the empty container until the both containers have the same pressure

b

\Delta H = 0\ , \Delta E = 0 , q= 0 , w= 0

c

The driving force for this process is the increase in entropy this is because the movement of the internal energy of the gas into a larger volume, what this does is that it increases the amount of disorder(entropy).

Explanation

In order to obtain the parameter in the part B of the question we are first obtain the initial pressure, using the ideal gas equation  

                      P = \frac{nRT}{V}

                     P = \frac{(2.4mol)(0.0821\frac{1 atm}{K \cdot \ mol} )}{4.0L}

                         P =15 \ atm

The next thing is to obtain the new pressure of the gas , using boyle's law

              P_1V_1 = P_2V_2

                  P_2 = \frac{P_1 V_1}{V_2}

                  P_2 = \frac{(15 \ atm)(4.0L)}{24.0 L}

                  P_2 = 2.5 \ atm    

Since the this process is isothermal , the change in heat is equal to zero

                      i.e  q = 0 J

  The workdone to move  the gas to the other container is zero because the  the pressure at this second container is zero due to the fact that it is a vacuum

    i.e  w = -P_{external} \Delta V

              =-(0 \ atm) (24.0 - 4.0L)

              = 0L \cdot atm

  Since the change in heat is zero and the workdone is zero then the change in internal energy is equal to 0

     This is because the change in internal energy is equal to a summation of change in heat and the workdone

                i.e \Delta E = q + w

                            = 0J

Generally the change in enthalpy is mathematically represented as

                \Delta H = n C_p \Delta T

Since the temperature is zero this means that the change in temperature is zero , substituting this value for change in temperature into the equation for  change in enthalpy

           \Delta H = n C_p (0)

                   = 0J

 

7 0
4 years ago
How many grams of water will form if 10.54 g H2 react with 95.10 g O2?
sergiy2304 [10]

Answer:

94.0 g H2O

Explanation:

5 0
4 years ago
Read 2 more answers
Other questions:
  • Is deionized water a homogeneous mixture?
    6·1 answer
  • Which of the following interparticle forces is the weakest
    11·2 answers
  • The _____ along a gene specifies the type of protein that will be produced.
    8·1 answer
  • Determine the volume of an 85-gram sample of gold at ST<br> M
    7·1 answer
  • I'll give brianly.
    7·1 answer
  • How do a steam engine do work a steam enter a cylinder and pushes a piston be steam causes wills to turn C steam turns a turbine
    15·1 answer
  • Suppose you look at a spectrum of visible light by looking through a prism or diffraction grating. How can you decide whether it
    6·1 answer
  • What’s the molarity of a solution created by dissolving 0.60 moles of KCL in 2.0 L of water
    10·1 answer
  • Please Help!!!!!!!!!!!!!!
    13·2 answers
  • Ch at me on dis cord if u want a friend or just wanna talk<br> . <br><br> Kgirl633#5722
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!